Yes, you can absolutely pack an electric toothbrush in your hand luggage. In 2026, the primary factor to consider is the battery type. Most high-end electric toothbrushes utilize lithium-ion batteries, which are officially required by the TSA and international aviation authorities to be kept in the cabin (carry-on) rather than in checked baggage due to the rare risk of thermal runaway. If your toothbrush uses standard alkaline AA batteries, it can go in either bag, but hand luggage is still preferred to prevent your checked bag from being flagged for manual inspection. To ensure a smooth security experience, it is wise to use a protective travel case to prevent the device from accidentally turning on mid-flight, as the vibration can sometimes cause concern for security personnel or other passengers. You do not typically need to remove it from your bag at the checkpoint unless specifically asked by an officer.